From: Eric W. Biederman Date: Sun, 20 Feb 2011 19:49:45 +0000 (-0800) Subject: net: Fix more stale on-stack list_head objects. X-Git-Tag: v2.6.38-rc7~47^2~15 X-Git-Url: http://review.tizen.org/git/?a=commitdiff_plain;h=5f04d5068a90602b93a7953e9a47c496705c6976;p=platform%2Fkernel%2Flinux-exynos.git net: Fix more stale on-stack list_head objects. From: Eric W. Biederman In the beginning with batching unreg_list was a list that was used only once in the lifetime of a network device (I think). Now we have calls using the unreg_list that can happen multiple times in the life of a network device like dev_deactivate and dev_close that are also using the unreg_list. In addition in unregister_netdevice_queue we also do a list_move because for devices like veth pairs it is possible that unregister_netdevice_queue will be called multiple times. So I think the change below to fix dev_deactivate which Eric D. missed will fix this problem. Now to go test that. Signed-off-by: David S. Miller --- diff --git a/net/mac80211/iface.c b/net/mac80211/iface.c index 8acba45..7a10a8d 100644 --- a/net/mac80211/iface.c +++ b/net/mac80211/iface.c @@ -1229,6 +1229,7 @@ void ieee80211_remove_interfaces(struct ieee80211_local *local) } mutex_unlock(&local->iflist_mtx); unregister_netdevice_many(&unreg_list); + list_del(&unreg_list); } static u32 ieee80211_idle_off(struct ieee80211_local *local, diff --git a/net/sched/sch_generic.c b/net/sched/sch_generic.c index 34dc598..1bc6980 100644 --- a/net/sched/sch_generic.c +++ b/net/sched/sch_generic.c @@ -839,6 +839,7 @@ void dev_deactivate(struct net_device *dev) list_add(&dev->unreg_list, &single); dev_deactivate_many(&single); + list_del(&single); } static void dev_init_scheduler_queue(struct net_device *dev,